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Francium
Francium

Nihonium
Nihonium



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Facts About Francium and Nihonium

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  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
Formed by Decay Process, Mining
Marguerite Perey
In 1939
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Nihonium is a synthetic chemical element and is highly radioactive.
Synthetically Produced
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
In 2003
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